Air blowing machine



(No Model.) 2 Sheets-Sheet 1.

A. S. REED.

- AIR BLOWING MACHINE.

No. 534,578. Patented Feb. 19, 1895.

NITED STATES ALBERT S. REED, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALFPATENT OFFICE.-

FRANKLIN J. REED, OF SAME PLACE.

AlR-BLOWlNGtMACHlNE.

. SPECIFICATION forming part of Letters Patent No. 534,578, datedFebruary 19, 1895.

7 Application filed April 10, 18 93. Serial No. 469,798 (No model.)

To all whom it may concern:

Be it known that I, ALBERT S. REED, a citizen of the United States,residing at Chicago, in the county of Cook, in the State of Illinois,have invented a new and useful Improvement in Air-Blowing Machines; andI hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon.

My invention relates to a high pressure air blowing machine, the generalshape .of which is cylindrical with an open rectangular box attached onthe side for intake and discharge ports or openings; the said intake anddischarge ports being separated by a parti tion. The end sought is adirect high pressure blast without any return current or escape exceptthrough the discharge port. This is accomplished by a revolving frame,which is made to fit the drum. The revolving frame consists of twocylindrical heads connected by a crescent shaped side similar to thesegment of a circle, the convex side beinga circle the same as thecylindrical heads and being thicker in the middle than at the ends iscrescent shaped in cross section, the whole frame having axles or shaftson'which it revolves and carries a rectangular paddle or piston havingboth sides convex and revolving on its own axis between the cylindricalheads described, as the Whole frame rotates. The ends of the drum arecut away enough to permit the cylindrical shaped heads of the revolvingframe to revolve therein, and are placed flush with the inside of theends of the drum. The cylindrical end of the revolving frame has acircular disk bolted to the head of the revolving frame, larger indiameter than thecylindrical head b of revolving frame,

. making a flange; or the head may be cast with a flange on it. To thisflange of the revolving frame head a cap is attached, which forms a casefor gear wheels that control the reversing movement of the piston orpaddle inside the drum. The axle of the revolving frame passes throughthe center of the cap, through the hub of the bearing frame outside ofthe revolving cap. The revolving cap described is cut away to admit thebearing through which the axle of the revolving frame passes. On theinside end of the bearing and within the revolving cap, rigidly securedin cog wheel has. As the revolving frame turns on its axis thetransmitting cog wheel is made to revolve by traveling around the smallstationary cog wheel, and by meshing into the cog wheel that is keyed tothe axle of the rectangular paddle or piston. The position of the latteris continually changed as it sweeps.

around the air chamber of the drum forcing the air out through thedischarge port.

To enable others skilled in mechanics to make and use my invention, Isubmit the following description of its construction and operation.

Figure 1. is a vertical section of the entire machine. Fig. 2. is atransverse section showing interior position of the rectangular convexpaddle or piston, as the forward end has closed theintake port and therear end closed the discharge port; also shows the end of therevolvingframe and the end of the curved connecting bar of the revolvingframe. Fig. 3. is an end view showing the revolving cap or gear case andthe hub and bearing frame cut away exposing the gear wheels.

The cylindrical drum A and. thebox which I constitute respectivelyintake and discharge ports (E and F Fig. 2.) form the outside case. Theintake and discharge ports, E and F are separated by a suitablepartition D.

Within the drum A is a revolving frame having two cylindrical heads, aandb (Figs.j2. and 3.) with a curved connecting bar crescent shaped incross section appearing on its'outside as a segment of a cylinder, andcrescent shaped by reason of its being. thicker in the middle than atits edges. v

The cylindrical heads a and b of the body of the revolving frame asdescribed have axles or shafts, B and 0 (Fig. 1.) whereby it is rotated;and the saddle or piston 61 is rectangular shaped with two convex sidesand has attached to each end axles, that have their bearings journaledin each of the cylindrical shaped heads 0L and b of the revolving framenear their outer edges, and directly opposite the crescent shaped side 0of said revolving frame. The paddle of piston cl revolves on its axisbetween the cylindrical heads a and b of the revolving frame, and alsorevolves with the revolving frame. Each time the revolving frame makes arevolution the paddle or piston d makes half a revolution, and reversesedges. The ends H and I of drum, A are cut away sufficiently to allowthe cylindrical heads cc and b of the revolving frame, to turn thereinwithout friction. To the end of cylindrical head I) of the revolvingframe is a flange fastened by bolts or screws, or the flange may be caston cylindrical head I) to which is fastened by bolts or screws a circular shaped cap or gear casej (Fig. 3.) cut away in the centersufficiently to admit the bearing (Fig.1.) through which the axle orshaft (3,- to which is fitted and keyed pulley G of the revolvingframepasses. On the inside end of the bearing K within the cap or case jthrough which the axle 0 passes, is fastened a stationary cog wheel '0'.(Figs. 1. and 3.)

The circular cap or gear casej (Fig. 3.) is considerably larger indiameter than the cylindrical headb of the revolving frame. Within cap jand attached to cylindrical head I) is a post or axle on which cog wheelit having preferably an odd number of cogs, turns. On the end of theaxle of the paddle or piston 61, within the cap or gear case heretoforedescribed, is keyed gear wheel 9 (Fig. 3.) having twice the number ofcogs that stationary cog wheel t' has. Gear wheels g and h travel withthe revolving frame, and as the frame revolves, gear wheel h meshes intoand travels around stationary cog wheel *5, and it also turns on its ownaxle and meshes into cog wheel g that is keyed to the axle of therectangular paddleor piston, which having twice the number of cogsstationary cog wheelt' has, through which it gets its motion by means oftransmitting cog wheel h, it follows, that at each revolution ofrevolving frame the pad-' dle or piston makes half a revolution-i. e.,reverses edges at each revolution of the revolving frame.

As the revolving frame carrying the paddle or piston makes a.revolution, the paddle or piston sweeps the air chamber in the drum Aforcing the air out through discharge port F. The paddle or piston d, isso arranged that as soon as it leaves the intake port E the crescentshaped side 0 of the revolving frame commences to pass partition Dthereby preventingthe return or escape of any airthrough the intake portE. As the paddle or piston passes through the air chamber the gearwheels heretofore described shift the position of it so that itdischarges all the air through the discharge port F, without any returncurrent, as that is prevented by the position of the crescent acting asa cutoff or stop, thereby greatly reducing the friction and increasingthe pressure.

The general form of the interior'of the case is cylindrical as beforestated, but it will be noted that it is not a true cylinder for in orderto keep the edges of the paddle or piston in close contact with theinterior of the case it is contracted at K and enlarged at bottom or atM as shown in Fig. 2. It will also be seen that the interior frame maybe revolved in either direction so that the terms inlet and outlet asapplied to the openings depend upon the direction of revolution. Theblower may also be used for a pump. The whole may be made of metal, orwood and metal as desired.

What I do claim for my invention, and desire to secure by LettersPatent, is

1. The combination of a cylindrical case or shell having inlet andoutlet openings, and a division plate with an interior revolving framehaving its ends or disks connected by a cross bar curved on its exteriorto fit against the division plate of theopenings to maintainthe divisionbetween the parts for a portion of the distance, and a revolving paddleor piston to continue such division for the remainder of the distanceand expelling the contained fluid, substantially as specified.

2. The combination of an exterior case or shell having inlet and outletopenings and a division plate with an interior revolving frame havingend plates or disks connecting at one side of its axis by a bar curvedon its exterior to fit against the division plate between the openingsand concaved on its interior on the segment of a circle adapted to fitagainst the edges of a revolving paddle or. piston which is journaled inthe end plates and made to revolve with them and to have an independentrevolving movement, substantially as specified.

3. In combination with a case or shell having a cylindrical interiorwith inlet and outlet openings and a division between them, a revolvingframe having a connecting bar as described at one side, and a paddle orpiston journaled in the opposite side which is carried around by theframe and given an independent half revolution for each completerevolution of the frame by suitable gearing and arranged to close thespace under the division between the openings when not closedby theconnecting bar, and to sweep around in contact with the shell to expelthe fluid and also to close the space in the frame by sweeping acrossthe connecting bar in contact therewith, whereby a continuous current ismaintained at the outlet, substantially as specified.

4. The combination of the case or shell having inlet and outlet openingswith a division between them, with an interior revolving frame havingits ends connected by a bar curved on its outer face to fit against thedi- V of the connecting bar and geared by suitable mechanism to make anindependent half revolution for each complete revolution of therevolving frame, substantially as specified.

5. The combination of the case A having the inlet opening E, outletopening F, and partition D, with the revolving frame having the endplates or heads a, b and connecting :5

bar a, the paddle or piston d jonrnaled in the heads by a shaft orprojection carrying the wheel 9 driven by the fixed Wheel '5 on thebearing of the shaft 0 of the revolving frame, substantially asspecified.

- ALBERT S. REED.

Witnesses:

ALONZO O. WIGNALL, WM. M. FISK.

